4571996920722 has 256 divisors, whose sum is σ = 13229824573440. Its totient is φ = 1134861710400.

The previous prime is 4571996920703. The next prime is 4571996920727. The reversal of 4571996920722 is 2270296991754.

4571996920722 is a `hidden beast` number, since 457 + 1 + 9 + 96 + 9 + 20 + 72 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 4571996920722.

It is not an unprimeable number, because it can be changed into a prime (4571996920727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 107375697 + ... + 107418267.

It is an arithmetic number, because the mean of its divisors is an integer number (51679002240).

Almost surely, 2^{4571996920722} is an apocalyptic number.

4571996920722 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4571996920722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6614912286720).

4571996920722 is an abundant number, since it is smaller than the sum of its proper divisors (8657827652718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4571996920722 is a wasteful number, since it uses less digits than its factorization.

4571996920722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43746 (or 43740 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 4571996920722 in words is "four trillion, five hundred seventy-one billion, nine hundred ninety-six million, nine hundred twenty thousand, seven hundred twenty-two".